双参数强度折减法研究中存在的问题分析
|
摘要
针对目前双参数强度折减法研究中的问题,在分析传统强度折减法原理的基础上,总结双参数强度折减法存在的问题。通过对强度折减本质的讨论,分析目前双参数强度折减法研究中折减路径、综合稳定性系数、结果验证三方面的问题。分析表明:基于强度储备的强度折减法,强度折减法的本质是对抗剪强度τf进行折减;双参数强度折减法对折减路径的选择上不具有普遍适用性,且改变了边坡原有抗剪强度参数;综合稳定性系数的确定缺乏理论证明,无明确的物理意义,且其结果不适用于非均质边坡;双参数强度折减法的计算偏离了边坡稳定性分析的实质,使得数值计算的结果失真。
In view of the problems in the study of the strength reduction method based on double reduction parameters,the problems of double parameters strength reduction based on the analysis of the traditional strength reduction principle are summarized.By discussing the essence of strength reduction,three problems of reduction path,comprehensive safety factor and calculation result verification in the study of double parameters strength reduction are analyzed.The results show that for the strength reduction method based on strength reserve,the essence of strength reduction is to reduce the shear strength τf.The choice of reduction path in double parameters strength reduction is not universally applicable,and the original shear strength parameters of the slope are changed.The determination of the comprehensive stability coefficient lacks theoretical evidence,this coefficient has no definite physical meaning,and its result is not suitable for the inhomogeneous slope.The calculation of double parameters strength reduction deviates from the essence of slope stability analysis and makes the results of numerical calculation distorted.
In view of the problems in the study of the strength reduction method based on double reduction parameters,the problems of double parameters strength reduction based on the analysis of the traditional strength reduction principle are summarized.By discussing the essence of strength reduction,three problems of reduction path,comprehensive safety factor and calculation result verification in the study of double parameters strength reduction are analyzed.The results show that for the strength reduction method based on strength reserve,the essence of strength reduction is to reduce the shear strength τf.The choice of reduction path in double parameters strength reduction is not universally applicable,and the original shear strength parameters of the slope are changed.The determination of the comprehensive stability coefficient lacks theoretical evidence,this coefficient has no definite physical meaning,and its result is not suitable for the inhomogeneous slope.The calculation of double parameters strength reduction deviates from the essence of slope stability analysis and makes the results of numerical calculation distorted.
引文
[1]ZIENKIEWICZ O C,HUMPHESON C,LEWIS R W.Associated and non-associated visco-plasticity and plasticity in soil mechanics[J].Geotechnique,1975,25(4):671-689.
[2]郑颖人,赵尚毅.有限元强度折减法在土坡与岩坡中的应用[J].岩石力学与工程学报,2004,23(19):3381-3388.[ZHENG Y R,ZHAO S Y.Application of strength reduction FEM to soil and rock slope[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(19):3381-3388.(in Chinese)]
[3]陈新泽,唐辉明,杨有成,等.基于FLAC3D强度折减法滑坡三维稳定性研究---以三峡库区白果树古滑坡群为例[J].水文地质工程地质,2008,35(2):24-29.[CHEN X Z,TANG H M,YANG Y C,et al.3D analysis of landside stability based on strength reduction FLAC3D:taking Baiguoshu paleolandside group in the Three Gorges Resvervior area as example[J].Hydrogeology&Engineering Geology,2008,35(2):24-29.(in Chinese)]
[4]林杭,曹平,李江腾,等.层状岩质边坡破坏模式及稳定性的数值分析[J].岩土力学,2010,31(10):3300-3304.[LIN H,CAO P,LI J T,et al.Numerical analysis of failure modes and stability of stratified rock slopes[J].Rock and Soil Mechanics,2010,31(10):3300-3304.(in Chinese)]
[5]李宁,刘冠麟,许建聪,等.降雨条件下边坡有限元强度折减法计算平台开发及其应用[J].水文地质工程地质,2018,45(3):63-70.[LI N,LIU G L,XU J C,et al.Development of shear strength reduction method for slope stability analysis under rainfall conditions and its application[J].Hydrogeology&Engineering Geology,2018,45(3):63-70.(in Chinese)]
[6]唐芬,郑颖人.边坡渐进破坏双折减系数的机理分析[J].地下空间与工程学报,2008,4(3):436-441.[TANG F,ZHENG Y R.Mechanism analysis on dual reduction factors about the progressive failure of slope[J].Chinese Journal of Underground Space and Engineering,2008,4(3):436-441.(in Chinese)]
[7]梅新宇,简文星,李雨.动态局部双强度折减法边坡稳定性分析[J].安全与环境工程,2016,23(3):163-166.[MEI X Y,JIAN W X,LI Y.Slope stability analysis based on dynamic local area and double strength reduction method[J].Safety and Environmental Engineering,2016,23(3):163-166.(in Chinese))
[8]肖瑶,邓华锋,李建林,等.考虑岩土体力学特性自然劣化规律的双折减系数强度折减法研究[J].工业建筑,2017,47(12):127-132.[XIAO Y,DENGH F,LI J L,et al.Research on strength reduction method based on double strength reduction factors and considering natural degradation rule of soil mechanics properties[J].Industrial Construction,2017,47(12):127-132.(in Chinese)]
[9]白冰,袁维,石露,等.一种双折减法与经典强度折减法的关系[J].岩土力学,2015,36(5):1275-1281.[BAI B,YUAN W,SHI L,et al.Comparing a new double reduction method to classic strength reduction method for slope stability analysis[J].Rock and Soil Mechanics,2015,36(5):1275-1281.(in Chinese)]
[10]袁维,李小春,王伟,等.一种双折减系数的强度折减法研究[J].岩土力学,2016,37(8):2222-2230.[YUAN W,LI X C,WANG W,et al.Study on strength method based on double reduction parameters[J].Rock and Soil Mechanics,2016,37(8):2222-2230.(in Chinese)]
[11]薛海滨,党发宁,尹小涛,等.边坡强度参数非等比例相关联折减法研究[J].岩石力学与工程学报,2015,34(增刊2):4005-4012.[XUE H B,DANG F N,YIN XT,et al.Research on method of slope strength parameters non-proportional associated reduction[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(Sup 2):4005-4012.(in Chinese)]
[12]水利水电工程边坡设计规范:SL386-2007[S].北京:中国水利水滴出版社,2007.[Water resources and hydropower engineering slope design specifications:SL386-2007[S].Beijing:China Water Power Press,2007.(in Chinese)]
[13]李广信.高等土力学[M].北京:清华大学出版社,2004.[LI G X.Advanced Soil Mechanics[M].Beijing:Tsinghua University Press,2004.(in Chinese)]
[14]陈仲颐,周景星,王洪瑾.土力学[M].北京:清华大学出版社,1994.[CHEN Z Y,ZHOU J X,WANGH J.Soil Mechanics[M].Beijing:Tsinghua University Press,1994.(in Chinese)]
[15]刘杰,李建林,王乐华,等.三种边坡安全系数计算方法对比研究[J].岩石力学与工程学报,2011,30(增刊1):2896-2903.[LIU J,LI J L,WANG LH,et al.Comparative study of three calculation methods for slope factor of safety[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(Sup1):2896-2903.(in Chinese)]
[16]俞茂宏,Oda Y,盛谦,等.统一强度理论的发展及其在土木水利等工程中的应用和经济意义[J].建筑科学与工程学报,2005,22(1):24-41.[YU M H,Oda Y,SHENG Q,et al.Development of unified strength theory and its applications in civil engineering and its economic significance[J].Journal of Architecture and Civil Engineering,2005,22(1):24-41.(in Chinese)]
[17]朱彦鹏,杨晓宇,马孝瑞,等.边坡稳定性分析双折减法几个问题[J].岩土力学,2018,39(1):1-9.[ZHU Y P,YANG X Y,MA X R,et al.Several questions of double reduction method for slope stability analysis[J].Rock and Soil Mechanics,2018,39(1):1-9.(in Chinese)]
[18]康校森.基于双折减系数法的黄土边坡稳定性研究[D].西安:长安大学,2016.[KANG X S.Study on loess slope stability based on the method of double reduction parameters[D].Xi'an:Chang'an University,2016.(in Chinese)]
[19]唐芬,郑颖人,赵尚毅.土坡渐近破坏的双安全系数讨论[J].岩石力学与工程学报,2007,26(7):1402-1407.[TANG F,ZHENG Y R,ZHAO S Y.Discussion on two safety factors progressive failure of soil slope[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(7):1402-1407.(in Chinese)]
[20]袁维.强度折减法的若干研究[D].武汉:中国科学院武汉岩土力学研究所,2014.[YUAN W.Study on strength reduction method[D].Wuhan:Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,2014.(in Chinese)]
[21]陈祖煜.建筑物抗滑稳定分析中“潘家铮最大最小原理”的证明[J].清华大学学报(自然科学版),1998,38(1):1-4.[CHEN Z Y.On Pan's principles of soil and rock stability analysis[J].Journal of Tsinghua University(Sci&Tech),1998,38(1):1-4.(in Chinese)]
[22]林杭.基于线性与非线性破坏准则的边坡强度折减法研究[D].长沙:中南大学,2009.[LIN H.Study on the strength reduction method for slope described by linear and non-linear failure criteria[D].Changsha:Central South University,2009.(in Chinese)]
[23]王少华,宛良朋,杨金强,等.强度折减法中不同力学参数适用性论证[J].水电能源科学,2015,33(4):139-142.[WANG S H,WAN L P,YANG JQ,et al.Applicable demonstration of different mechanical parameters on strength reduction method[J].Water Resources and Power,2015,33(4):139-142.(in Chinese)]
[24]陈依琳,王媛.基于数值流形元法的异步强度折减边坡稳定性分析[J].水电能源科学,2015,33(3):115-119.[CHEN Y L,WANG Y.Slope stability analysis of asynchronous strength reduction based on numerical manifold method[J].Water Resources and Power,2015,33(3):115-119.(in Chinese)]
[25]YUAN Wei,BAI Bing,LI Xiaochun,et al.A strength reduction method based on double reduction parameters and its application[J].J.Cent.South Univ,2013,2013(20):2555-2562.
[26]朱彦鹏,杨晓宇,严锐鹏,等.双强度折减法的配套折减机制[J].兰州理工大学学报,2017,43(2):121-126.[ZHU Y P,YANG X Y,YAN R P,et al.Matching reduction mechanism of double reduction method[J].Journal of Lanzhou University of Technology,2017,43(2):121-126.(in Chinese)]
[27]ISAKOV A,MORYACHKOV Y.Estimation of slope stability with using two-parameter criterion of stability[J].International Journal of Geomechanics,2014,14(3):613-624.
[28]赵炼恒,曹景源,唐高朋,等.基于双强度折减策略的边坡稳定性分析方法探讨[J].岩土力学,2014,35(10):2977-2984.[ZHAO L H,CAO J Y,TANGG P,et al.Discussion on slope stability analysis with double strength reduction technique[J].Rock and Soil Mechanics,2014,35(10):2977-2984.(in Chinese)]
[29]王强志,高永涛,吴顺川,等.基于综合安全系数的强度折减法的改进[J].金属矿山,2015,44(7):43-47.[WANG Q Z,GAO Y T,WU S C,et al.Improvement of the strength reduction method based on comprehensive safety factor[J].Metal Mine,2015,44(7):43-47.(in Chinese)]
[2]郑颖人,赵尚毅.有限元强度折减法在土坡与岩坡中的应用[J].岩石力学与工程学报,2004,23(19):3381-3388.[ZHENG Y R,ZHAO S Y.Application of strength reduction FEM to soil and rock slope[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(19):3381-3388.(in Chinese)]
[3]陈新泽,唐辉明,杨有成,等.基于FLAC3D强度折减法滑坡三维稳定性研究---以三峡库区白果树古滑坡群为例[J].水文地质工程地质,2008,35(2):24-29.[CHEN X Z,TANG H M,YANG Y C,et al.3D analysis of landside stability based on strength reduction FLAC3D:taking Baiguoshu paleolandside group in the Three Gorges Resvervior area as example[J].Hydrogeology&Engineering Geology,2008,35(2):24-29.(in Chinese)]
[4]林杭,曹平,李江腾,等.层状岩质边坡破坏模式及稳定性的数值分析[J].岩土力学,2010,31(10):3300-3304.[LIN H,CAO P,LI J T,et al.Numerical analysis of failure modes and stability of stratified rock slopes[J].Rock and Soil Mechanics,2010,31(10):3300-3304.(in Chinese)]
[5]李宁,刘冠麟,许建聪,等.降雨条件下边坡有限元强度折减法计算平台开发及其应用[J].水文地质工程地质,2018,45(3):63-70.[LI N,LIU G L,XU J C,et al.Development of shear strength reduction method for slope stability analysis under rainfall conditions and its application[J].Hydrogeology&Engineering Geology,2018,45(3):63-70.(in Chinese)]
[6]唐芬,郑颖人.边坡渐进破坏双折减系数的机理分析[J].地下空间与工程学报,2008,4(3):436-441.[TANG F,ZHENG Y R.Mechanism analysis on dual reduction factors about the progressive failure of slope[J].Chinese Journal of Underground Space and Engineering,2008,4(3):436-441.(in Chinese)]
[7]梅新宇,简文星,李雨.动态局部双强度折减法边坡稳定性分析[J].安全与环境工程,2016,23(3):163-166.[MEI X Y,JIAN W X,LI Y.Slope stability analysis based on dynamic local area and double strength reduction method[J].Safety and Environmental Engineering,2016,23(3):163-166.(in Chinese))
[8]肖瑶,邓华锋,李建林,等.考虑岩土体力学特性自然劣化规律的双折减系数强度折减法研究[J].工业建筑,2017,47(12):127-132.[XIAO Y,DENGH F,LI J L,et al.Research on strength reduction method based on double strength reduction factors and considering natural degradation rule of soil mechanics properties[J].Industrial Construction,2017,47(12):127-132.(in Chinese)]
[9]白冰,袁维,石露,等.一种双折减法与经典强度折减法的关系[J].岩土力学,2015,36(5):1275-1281.[BAI B,YUAN W,SHI L,et al.Comparing a new double reduction method to classic strength reduction method for slope stability analysis[J].Rock and Soil Mechanics,2015,36(5):1275-1281.(in Chinese)]
[10]袁维,李小春,王伟,等.一种双折减系数的强度折减法研究[J].岩土力学,2016,37(8):2222-2230.[YUAN W,LI X C,WANG W,et al.Study on strength method based on double reduction parameters[J].Rock and Soil Mechanics,2016,37(8):2222-2230.(in Chinese)]
[11]薛海滨,党发宁,尹小涛,等.边坡强度参数非等比例相关联折减法研究[J].岩石力学与工程学报,2015,34(增刊2):4005-4012.[XUE H B,DANG F N,YIN XT,et al.Research on method of slope strength parameters non-proportional associated reduction[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(Sup 2):4005-4012.(in Chinese)]
[12]水利水电工程边坡设计规范:SL386-2007[S].北京:中国水利水滴出版社,2007.[Water resources and hydropower engineering slope design specifications:SL386-2007[S].Beijing:China Water Power Press,2007.(in Chinese)]
[13]李广信.高等土力学[M].北京:清华大学出版社,2004.[LI G X.Advanced Soil Mechanics[M].Beijing:Tsinghua University Press,2004.(in Chinese)]
[14]陈仲颐,周景星,王洪瑾.土力学[M].北京:清华大学出版社,1994.[CHEN Z Y,ZHOU J X,WANGH J.Soil Mechanics[M].Beijing:Tsinghua University Press,1994.(in Chinese)]
[15]刘杰,李建林,王乐华,等.三种边坡安全系数计算方法对比研究[J].岩石力学与工程学报,2011,30(增刊1):2896-2903.[LIU J,LI J L,WANG LH,et al.Comparative study of three calculation methods for slope factor of safety[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(Sup1):2896-2903.(in Chinese)]
[16]俞茂宏,Oda Y,盛谦,等.统一强度理论的发展及其在土木水利等工程中的应用和经济意义[J].建筑科学与工程学报,2005,22(1):24-41.[YU M H,Oda Y,SHENG Q,et al.Development of unified strength theory and its applications in civil engineering and its economic significance[J].Journal of Architecture and Civil Engineering,2005,22(1):24-41.(in Chinese)]
[17]朱彦鹏,杨晓宇,马孝瑞,等.边坡稳定性分析双折减法几个问题[J].岩土力学,2018,39(1):1-9.[ZHU Y P,YANG X Y,MA X R,et al.Several questions of double reduction method for slope stability analysis[J].Rock and Soil Mechanics,2018,39(1):1-9.(in Chinese)]
[18]康校森.基于双折减系数法的黄土边坡稳定性研究[D].西安:长安大学,2016.[KANG X S.Study on loess slope stability based on the method of double reduction parameters[D].Xi'an:Chang'an University,2016.(in Chinese)]
[19]唐芬,郑颖人,赵尚毅.土坡渐近破坏的双安全系数讨论[J].岩石力学与工程学报,2007,26(7):1402-1407.[TANG F,ZHENG Y R,ZHAO S Y.Discussion on two safety factors progressive failure of soil slope[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(7):1402-1407.(in Chinese)]
[20]袁维.强度折减法的若干研究[D].武汉:中国科学院武汉岩土力学研究所,2014.[YUAN W.Study on strength reduction method[D].Wuhan:Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,2014.(in Chinese)]
[21]陈祖煜.建筑物抗滑稳定分析中“潘家铮最大最小原理”的证明[J].清华大学学报(自然科学版),1998,38(1):1-4.[CHEN Z Y.On Pan's principles of soil and rock stability analysis[J].Journal of Tsinghua University(Sci&Tech),1998,38(1):1-4.(in Chinese)]
[22]林杭.基于线性与非线性破坏准则的边坡强度折减法研究[D].长沙:中南大学,2009.[LIN H.Study on the strength reduction method for slope described by linear and non-linear failure criteria[D].Changsha:Central South University,2009.(in Chinese)]
[23]王少华,宛良朋,杨金强,等.强度折减法中不同力学参数适用性论证[J].水电能源科学,2015,33(4):139-142.[WANG S H,WAN L P,YANG JQ,et al.Applicable demonstration of different mechanical parameters on strength reduction method[J].Water Resources and Power,2015,33(4):139-142.(in Chinese)]
[24]陈依琳,王媛.基于数值流形元法的异步强度折减边坡稳定性分析[J].水电能源科学,2015,33(3):115-119.[CHEN Y L,WANG Y.Slope stability analysis of asynchronous strength reduction based on numerical manifold method[J].Water Resources and Power,2015,33(3):115-119.(in Chinese)]
[25]YUAN Wei,BAI Bing,LI Xiaochun,et al.A strength reduction method based on double reduction parameters and its application[J].J.Cent.South Univ,2013,2013(20):2555-2562.
[26]朱彦鹏,杨晓宇,严锐鹏,等.双强度折减法的配套折减机制[J].兰州理工大学学报,2017,43(2):121-126.[ZHU Y P,YANG X Y,YAN R P,et al.Matching reduction mechanism of double reduction method[J].Journal of Lanzhou University of Technology,2017,43(2):121-126.(in Chinese)]
[27]ISAKOV A,MORYACHKOV Y.Estimation of slope stability with using two-parameter criterion of stability[J].International Journal of Geomechanics,2014,14(3):613-624.
[28]赵炼恒,曹景源,唐高朋,等.基于双强度折减策略的边坡稳定性分析方法探讨[J].岩土力学,2014,35(10):2977-2984.[ZHAO L H,CAO J Y,TANGG P,et al.Discussion on slope stability analysis with double strength reduction technique[J].Rock and Soil Mechanics,2014,35(10):2977-2984.(in Chinese)]
[29]王强志,高永涛,吴顺川,等.基于综合安全系数的强度折减法的改进[J].金属矿山,2015,44(7):43-47.[WANG Q Z,GAO Y T,WU S C,et al.Improvement of the strength reduction method based on comprehensive safety factor[J].Metal Mine,2015,44(7):43-47.(in Chinese)]
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |